Anderson Silva will complete his return to the UFC in a bout with Michael Bisping following a 12-month ban for steriod use.
The Brazilian, considered one of the greatest MMA fighters in history, defeated Nick Diaz by unanimous decision on January 31.
However, the 40-year-old had failed a drugs test before the fight in Las Vegas and was subsequently handed a one-year ban and had the result of the fight changed to a no-contest.
Silva will take part in his first fight since the suspension when he takes on Bisping on February 27 at the O2 Arena in London.
UFC president Dana White confirmed the fight via Twitter: "Anderson Silva vs Michael Bisping is the main event in London on Feb 27."
Silva, who holds the UFC record for consecutive title defences with 10, briefly considered trying out for his country's Taekwondo at the 2016 Olympics in Rio.
Bisping's record is 27-7 in MMA and 17-7 in UFC fights, with the English fighter having overcome the likes of Cung Le, Brian Stann and Chris Leben during his career.